Influence of reducing annealing on the luminescent properties of Li2B4O7:Cu single crystals

被引：23
|
作者：
Holovey, V. M.
Sidey, V. I.
Lyamayev, V. I.
Puga, P. P.
机构：
[1] Ukrainian Natl Acad Sci, Inst Electron Phys, Dept Opt Mat Quantum Elect, UA-88017 Uzhgorod, Ukraine
[2] Uzhgorod Natl Univ, UA-88000 Uzhgorod, Ukraine
来源：
JOURNAL OF LUMINESCENCE | 2007年 / 126卷 / 02期
关键词：
Li2B4O7 : Cu; single crystal; reducing annealing; thermoluminescence; x-ray luminescence;
D O I：
10.1016/j.jlumin.2006.08.089
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Li2B4O7:Cu single-crystal annealing in the reducing environment results in a sharp drop of intensity of thermoluminescence (TSL) and X-ray luminescence (XL) peaks. It was suggested that during annealing in the reducing environment, an oxygen vacancy is produced in the LTB structure at the bridging oxygen atom site. Oxygen vacancy charge compensation takes place at the expense of reduction of the doping Cu+ ion to the Cu state. In this case the A(0)-type thermoluminescence center formation mechanism due to irradiation becomes impossible. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：408 / 412
页数：5
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